TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 213 MAINTENANCE OF OPTICAL INSTRUMENT WORM ASSEMBLY, OPTICAL INSTRUMENT COLLECTIVE CELL ASSEMBLY, OPTICAL INSTRUMENT OBJECTIVE CELL ASSEMBLY, AND RETICLE ASSEMBLY. This task covers: a. Removal/ Disassembly c. Repair b. Cleaning d. Reassembly/Installation INITIAL SETUP: Tools and Special Tools Equipment Conditions Tool kit, electronic: system maintenance 2-28 Worm assembly removed (SC 5180-95-CL-B29) Spanner wrench (item 7, appx D) General Safety Instructions Tubular spanner wrench, 27/32 and 55/64 (7597650) Tubular spanner wrench, 31/32 and 63/6 (7597647) Tubular spanner wrench, 1 and 1-1/64 (7597648) Use adhesives, cleaning solvents, Tubular spanner wrench, 1-1/16 and and sealing compounds in well- 1-5/64 (7597650) ventilated area away from open flame. Adhesives, cleaning sol Materials/Parts vents, and sealing compounds Sealing compound (item 10, appx C) are harmful to skin and clothing, can burn easily, and may give off References harmful vapor. TM 9-254 REMOVAL/DISASSEMBLY 1 Remove setscrew (1) and cell assembly (2) from gear (3) using tubular spanner wrench (7597650). NOTE Step 2 is written and illustrated for disassembly of cell assembly (8587297). 2 Remove cell (4) and lens (5) from optical element cell (6) using tubular spanner wrench (7597647). 2-39